I just went through the thread again and found this:
So if I’m reading this right, they use a Gim6010 from Steadywin-Motor:
Spec Sheet
I also “only” see a torque of nominally 50 kgcm and a (temperature, current, voltage, speed constrained) peak torque of 110 kgcm. And for the rated power, depending on the driver board and voltage it’s 252W or 138 W per motor. Sooo… yeah, especially with the integrated fan (good decision btw!) and the version with the higher torque constant, it’s probably no problem at all. I do wonder though, whether the driver would de-rate at some point, if you supply it with more power (insert grunting noises here ^^) .
To highlight another aspect: The rated speed is given at 120 (220 rpm) and max. of 420 (554 rpm).
Simple calculations. CW: Maths
Divide it by 60, to get the revolutions per second. For a nominal range the OSR moves 60°, i.e. one sixth of a revolution, so multiply by 6. Times 100 for units/seconds. So in total multiply times 10 for the peak speed in units/s for the standard range.
So you get rated 1200/2200 units/s, max 4200/5540 units/s peak speeds. Which isn’t the speed in OFS, because it has to accelerate and brake, but still very promising values for the fans of high speeds and/or vibrations (hope your lube is heat-resistant
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Absolutely. And if the system is designed well, then it’s also durable.Just make sure the clamp is sturdy and that everything is bolted down, or you might end the session in the living room
. I’d be more worried that some mechanical part or a cable breaks, than that the motor goes up in smoke. The complexity of the motor and driver/controller does cost you in the beginning, but if done well, it will be less money and headaches over the whole lifecycle.
What can happen depending on how the gears are designed and depending on the sleeves and scripts used, is that with the years, the play (technical term “backlash”) of the gear can increase, and with it, the noise (and heat). You might hear the difference on industrial robots that run 24/7 if you know, what you’re looking for. I personally don’t think it to be critical for this use case though, since for robotic joints, they usually design it for high shocks.